Better monitoring for dropped device connections

Rather than look at the devices list, issues an adb shell command to
check uptime.

Bug: 79876086
Change-Id: I3b243a933d17a0e2fde9fedab7cdf375c94df195
Merged-In: I3b243a933d17a0e2fde9fedab7cdf375c94df195
Test: local boot, boot two devices on gce and see them both connect
(cherry picked from commit 64bf90ba206f0b019cf87edcfc6534bd1f8994e5)
1 file changed
tree: 07d3ce80ec380c7b7cb3ce620afc9763e59e81f7
  1. common/
  2. guest/
  3. host/
  4. tests/
  5. tools/
  6. Android.bp
  7. Android.mk
  8. OWNERS